Engine/Transmission (1994 - 1998) Oil Leak KDP???

[jnau99]

So I just got back from camping this weekand. The first time I have towed anything big since I put the #10 plate in. When I parked There was a lot of oil leaking out the front of the engine. I just changed it yesterday and it is a half gallon low now (ouch).

I was planning on tabing the KDP this week, and also putting a new front main in. My question is, it dosent look like the oil is coming from the gear surround. It looks like it is coming form the top of the engine (not valve cover; lower. ) There is oil everwhere on the motor now. Fan has blown it all over. Is there any other possible places it could leak that bad?

Also has anyone ever tiged the old surround back togheter?

Thanks

Justin

 

[MLee]

Clean off the motor as best as you can to check for the source. looks like maybe the KDP got you. HOPE not. does the leak appear higher than the gear case. Check to the right and under the fan hub. (looking from front) this is the general area that gets tagged with the pin.

good luck.

Marv.

 

[Koa Man]

Check to see if your oil pressure sensor is leaking. It is located on the driver's side, about the middle of the engine, near the fuel filter. You will need to get a new sensor if it starts to leak. Fortunately, they are fairly cheap.



Edited to change to fuel filter.

 

[jnau99]

My filter is on the passenger side. The leak looks like it is on the driver side.



I am going to clean it today (it is a mess. ) We'll see what the problem is i guess.



Back to my other question. Has anyone tried to fix the old housing if the Dowel pin does fall out? I've never seen one in person as I am new to the Dodge, but from the pics that Joe sent it looks like it could be fixed. I have full access to a machine shop. I was thinking about fixing the crack (if this is the problem) and also welding a small stop for the dowell pin.

Any Ideas?



Thanks for the help

Justin

 

[Koa Man]

Sorry about the error in my previous post. I meant to say fuel filter. I corrected it above. If it is the dowel pin, you will still need to pull the cover. At that point it would be far easier to just tab it instead of welding a stop. The reason I suggested to also take a look at the oil sensor is because mine started leaking two weeks ago and I changed it out. I sure hope it is something simple like the oil sensor and not the KDP. Good luck.

 

[bavrit]

Oil Leak

Did you check to see if you removed the old oil filter o-ring? Perhaps you have two o-rings which will leak.

 

[grtescpa]

Oil leak

Check that short rubber hose that drains the turbo lube oil back to the block. Mine was leaking. Dodge has a new part with new clamps to replace it.

5086952-AA hose, 5014195-AB clamps

 

[BWatson]

Sounds like exactly what I have. Fix it soon - my alternator is now covered in oil and I'm really worried about that. My air filter is 1/2 covered with oil which isn't good at all and my clutch is now slipping a little so I'm wondering if the oil hasn't made its way back to there now too through the opening in the bellhousing below the flywheel. I thought for sure the KDP got me but I cleaned everything up really well one afternoon and couldn't find any cracks in the case. I think I narrowed it down to just the seal between the timing case and the block is bad and the oil is leaking around that. I read on here that is a pretty common occurance also. The labor involved to fix it is just as much as replacing a broken case from the KDP so its not a small job. Hopefully that is all it is and you (and I) won't have to replace the case. Mine only leaks while it is running (builds crankcase pressure to force the oil through the seal), I think a KDP broken case will leak all the time. Not 100% about that but I think that is what I heard. Good luck.

 

[Joe G.]

The crack the KDP makes is very hard to see unless the fan support is removed. Patching the broken place may not be a good idea because the gear case is weak because of where the break is. No oil should leak when the engine is not running from a failed KDP. There have been some reports that a patched gear case has broken in two pieces. It supports the injection pump which is pretty heavy. If the gear case breaks the damage can be really expensive. If the KDP got you then you really should replace the gear case.

 

[jnau99]

Well thanks for the input. I'll see what it is today. I cleaned everything up and let it run for a while and it looks like the oil is not coming from the top of the motor. So KDP is probably the problem (murphy does like to follow me which is nice cauz college is expensive. )



My plan is to just get a new case. I thought about welding it and cast alluminum is already bridle so it probably wouldent be a good idea. I'll get it torn down today so i should be able to see the problem.



One more question where exactly is the serial number fot the engine? Is it the one on the case? What is a standard number? I'm just wondering because i got the parts list off here and there are two different cases being used. 3936256 & 3920519

 

[Joe G.]

The CPL number is the recipe that Cummins uses for the engine. That's what the parts guy at Cummins wants to know. There are two gear cases. The old style with the straight thru bore for the KPD and the new style with a stepped bore. Take a look at this site for how to repair the failure and a picture of the new style gear case you want:

http://www.flex.net/~triplem/new/dowelpin.htm

 

[jnau99]

Tore it apart today.



Yep. KDP Strikes again. And just think I was going to tab it thursday. Oh well.



So the local cummins shop cant get a front main seal. I have to go to the dealer, they want twice as much for it go figure. I have everything else on order it'll be here friday.



Thanks for the help

 

[DPinkston]

Tore it apart today.



Yep. KDP Strikes again. And just think I was going to tab it thursday. Oh well.



So the local cummins shop cant get a front main seal. I have to go to the dealer, they want twice as much for it go figure. I have everything else on order it'll be here friday.



Thanks for the help

Sorry to hear about your KDP.

Are you referring to the seal in the front timing cover? I picked up one at NAPA for about $25. That includes the installation sleeve and backstop thingy.

The local Dodge dealer wanted $46 for it I think.

Danny